21000470444

素因数分解:

$2^2\times {\mathrm{4079}}^1\times {\mathrm{1287109}}^1$

素因数の和:1291192

約数の個数: 12

約数和(自身を含む): 36759861600

約数和(自身を除く): 15759391156

約数列:

[1, 2, 4, 4079, 8158, 16316, 1287109, 2574218, 5148436, 5250117611, 10500235222, 21000470444]

約数ペア:

[(1, 21000470444), (2, 10500235222), (4, 5250117611), (4079, 5148436), (8158, 2574218), (16316, 1287109)]